Barrel



FIG. 1 is a top perspective view of the barrel;

FIG. 2 is a side elevation view of the barrel;

FIG. 3 is a top view of the barrel; and,

FIG. 4 is a bottom view of the barrel.

The broken lines shown in the figures are included for the purpose of illustrating portions of the barrel and form no part of the claimed design. 

CLAIM The ornamental design for a barrel, as shown and described. 